33 articles from SATURDAY 2.12.2023

As seas get warmer, tropical species are moving further from the equator

Climate change is causing tropical species in the ocean to move from the equator towards the poles, while temperate species recede. This mass movement of marine life, termed tropicalization, is leading to a cascade of consequences for ecosystems and biodiversity, and has the potential to impact the global economy.

Strange Universe: Empty conclusions

In astronomy, we tend to use miles or kilometers for nearby objects like the Moon and Venus, and light-years or parsecs for star distances. Parsec is street slang for professional astronomers but usually bewildering to the public, since it’s based on angles rather than tape-measure-like distances. So, visualizing cosmic vastness starts with tackling that termContinue reading "Strange Universe:...

A new possible explanation for the Hubble tension

The universe is expanding. How fast it does so is described by the so-called Hubble-Lemaitre constant. But there is a dispute about how big this constant actually is: Different measurement methods provide contradictory values.

Cells of people living in greener areas age more slowly, research finds

Greener neighborhoods can slow ageing process of human cells but effects of environmental racism can erase any benefitsMany studies have shown that people living in greener neighborhoods have several health benefits, including lower levels of stress and cardiovascular disease. But new research indicates that exposure to parks, trees and other green spaces can slow the rates at which our cells...

Where did the water on Mars go?

In movies, Matt Damon can grow potatoes on the Red Planet. But in reality, Mars is an extremely hostile environment. We know of only a single abode that suits fragile creatures like human beings well — right here on Earth. Mars has an atmosphere about 100 times more tenuous than our planet’s, and the mean surfaceContinue reading "Where did the water on Mars go?" The post Where did the...

AI laser that reads heartbeat through the throat could replace stethoscopes

New invention, which can be set up at home, promises to transform the way we monitor our health, say scientistsScientists have developed a laser camera that can read a person’s heartbeat at a distance and pinpoint signs that they might be suffering from cardiovascular illnesses.The system – which exploits AI and quantum technologies – could transform the way we monitor our health, say...

Boris Johnson’s legacy will be shaped by Covid inquiry appearance

Discredited ex-PM faces a demolition job in one of the few policy areas to which he and his allies still clingEven at the height of his popularity, Boris Johnson routinely avoided close questioning – to the extent of once hiding in a fridge to dodge a TV inquisitor. The former UK prime minister is likely to be dreading next week’s appearance at the Covid inquiry. And he probably should.It is...